Circuit/System Testing

Ignition OFF, disconnect the harness connectors at all position sensors.
Disconnect the harness connector at the K19 Suspension Control Module, ignition ON.
Test for less than 1 V between the following K19 Suspension Control Module 5V reference circuits and ground.
- Terminal 7
- Terminal 12
- If greater than 1 V
  Repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
Ignition OFF.
Test for infinite resistance between the following K19 Suspension Control Module 5V reference circuits and ground.
- Terminal 7
- Terminal 12
- If less than infinite resistance
  Repair the short to ground on the circuit.
- Go to next step: If infinite resistance
Ignition OFF, connect the harness connector at the K19 Suspension Control Module, ignition ON.
Verify the scan tool Suspension Position 5V Reference parameter is greater than 4.75 V.
- If 4.75 V or less
  Replace the K19 Suspension Control Module.
- Go to next step: If greater than 4.75 V
Clear the DTCs.
Connect each position sensors one at a time. Verify DTC C0870 is not set after each position sensor is connected.
- If DTC C0870 is set
  Replace the position sensor that set DTC.
- Go to next step: If DTC C0870 is not set
All OK.